Fig. 3From: Systematic analysis of the basic/helix-loop-helix (bHLH) transcription factor family in pummelo (Citrus grandis) and identification of the key members involved in the response to iron deficiencyGene structures and protein motifs of CgbHLHs. The intron-exon structures, predicted motifs 1 to 20, and conserved domains of all CgbHLHs are shown according to their phylogenic classificationsBack to article page